TEZ-611. Should throw SessionNotRunning if session has not been started or has been stopped. (gunther via hitesh)
TEZ-623. Vertices should be able to support multiple outputs. (hitesh)
TEZ-612. Add a BUILDING.txt for how to build Tez. (Austin Chungath Vincent via hitesh)
TEZ-626. Round off error for small numbers in ShuffleVertexManager auto parallelism (bikas)